Nut lock



J. A. ARENZ Jan. 3, 1933.

NUT LOCK Filed July 2,1931

wa wo'mw Elwuewtoz ,VRENZ Patented dan 3, 35 933 ti ri it] ll 363.1? A. AREIIZ, 02. SEQUIN? VEBEON, NEW "Z9333, ASSIGNOB TI) LOCK NUT CGEEEJTTZ, A. IDIVIfiION F ENTERNA'I'IOHAL SCREW] COMPANY, '01 VJILMINGTON, DELAWElEE,

A. GORPQRATEQN GE NUT Apniicstion filed July 53,

This invention relates to nut locks and in particular to a simplified form adapted for use in connection with single or double thread bolts and their associated double threaded-or single threaded retaining members or nuts A particular object oi my invention s to provide in a nut having a double or single threaded interior, a locking means which can be cheaply applied to the nut and which will W efiectively lock the same in connection with the threaded end of a bolt so jarring or continuous vibration will prevent an unthreading movement oi? the n quent detachment from the l A still further object or" ntion is to provide in connection with a and bolt, a malleable ring which, when placed in suitable groove, in the nut, will be distorted and will jam the threads of the colt "c that rcsistance will be offered to their u'lthreading movement with respect to the thread grooves oi the nut.

"With these and other objects view the invention comprises certain constructions hereinafter described and then particularly pointed out in the claims a. preferred embodiment of my invention is illust ated in the accompanying drawing, in which Figure 1 is a view in elevation, part thereof being shown in section a bolt and associated nut, the latter being in its locked position on the shank of the holt'and the locking means being shown in its functioning position.

Figure 2 is a view in elevation of a nut constructed in accordance withviny invention, a part thereof being shown in section to illustrate the double thread and double thread locking means, V cm Figure 3 is an enlarged, fragmentary view in section of a portion of the nut illustrated- 0 d its subseianlz.

in Figure 2 showing the seat cut in the nut to retain the locking ring.

Figure i is a view similar to Figure 3 showing how the locking rings made of malleable material are distorted by the threads of the bolt shank which'distortion jams the shank of the bolt within the nut and prevents the same from having an unthreaded movement relatively thereto.

i931. Eierial li o. iii-3,319.

Figure 5 is a view similar to Figure showing the use of a single locking ring in connection with the single thread of a nut and Figure 6 is a view in perspective of the locking ring used either singly or doubly depending upon whether or not the nut is single or double thread.

Pieierring to the drawing in detail, 5 indicates a bolt having a shank 6 the and 70% which is provided with single or double 69 threads 8. in the llu trated in Figures 1 to i, a double thread i illustrated but my s invention is applicable to either and it helieved that the description of one will for both. 35 le nut 9 which is threaded over the and of the shank is also provided with correq l 4. y, :I ding single or double inroads 10 and i1, end or DlOYlClB the 0 me 3, and in either the inner the outer end oi the nut, 1 thread grooves 10 and ll, which are not cut in thread but are out horizo with the faces of the nut 9, the

indicated by the numeral 13 T; l i inner face is indicated by the numeral it. These grooves or groove 12 may be cut at point adjacent the inner or outer of the nut 9 without regard to the po of the threads, that is, they are simply on i the inner wall of the nut and the terminate or cross these grooves 12. grooves are cut preferably after the threading of the nut is completed and witho gard to the position of the threads. in the grooves which may be of the same depth the threads or deeper depending upon the diameter of the ring metal, there is disposed a locking ring 15, a locking ring being disposed in each of the grooves in the event a double thread is used, or in the single groove where the single thread is used.

This locking ring 15 is made of soft or malleable metal and its ends 16 are spaced apart as at 17 to permit expansion when the metal is crowded into the groove when the shank of the bolt is inserted or threaded into the nut or when the nut is threaded down over the shank of the bolt. The locking ring as illustrated in Figure 6 may be slightly 2 Legato o7- larger in diameter than the diameter of the groove 12 into which it is to seat so that when It .is laced in the groove, it will be slightly closed. and firmly held in position in the groove in tight fit so that it will not fall out.

As illustrated in Figure 4, when the threaded shank 7 of the bolt is positioned within the nut 9, the threads of the bolt will cut into the locking rings 15 or'ring, whichever the 10 case may be, and will jam it into the groove 12, not only filling the groove but jamming the shank of the bolt so that any movement of. the shank relatively to the nut, will be prevented. This threading of the nut down over the shank will distort the ring or rin a and will efi'ectively lock th'enut on the b0 t 1 shank 6 with the result that it cannot be shaken off and can only be turned back 03 the shank with great ressure.

It is evident, there ore, that I have provided a nut lock which is equally adaptable to single threaded nuts and bolts and double threaded nuts and bolts and which requires a minimum of machine operation, namely, the

cutting of the roove which may be done by automatic mac inery and the production of the lockin' ring which may be made up in reat num ers and vwhich may be used clouly or singly, depending upon whether or not the lock nut and bolt to be used therewith employs a sin le or a double thread.

It is evi ent, too, that I have provided an efiective locking means which is simple of construction and which may be assembled di- 3 rectly the nut to form a part thereof without making necessary the assembly of the ring) and the nut at the point where the assem 1y of the bolt is-to take place.

My invention is not to be restricted to the 40 precise details of construction shown since various changes and modifications may be made therein without departing from the scope of the invention or sacrificing the advantages derived from its use.

What I claim is:- i

1. The combination with a nut having a single threaded bore, of a oove in said bore, an'lncomplete ring of ma eable metal circular in cross section positioned in the groove,

said groove being parallel with the end faces of the nut.

2. The'combination with a nut having a double threaded bore, of spaced grooves in said bore parallel with each other and with the end faces of the nut, a single coil malleable metal ring of circular cross section having its ends spaced positioned in each of the grooves, said rings bein arranged for distortion by the threads 0 a bolt shank over which said nut is ositioned.

In testimon w ereof I aflix in Si ature. .l OHN A. ARENZY 9.] 

